|
[接上页] 12.0 2 Floors for- domestic buildings; hospital consulting rooms; hospital operating theatres and X-ray rooms (equipment to be determined, but not less than); childcare centres and kindergartens 2.5 3.0 15.0 3 Floors for- college and school classrooms, lecture rooms; college and school laboratories (equipment to determined, but not less than); offices for general use; reading rooms without book storage; recreational areas that cannot be used for assembly purposes, billiard rooms, bowling alleys; light workrooms, without central power-driven machines and storage 3.0 4.5 18.0 4 Floors for- assembly areas with *fixed seating; banking halls; chapels, churches and places of worship (with fixed seating); kitchens and laundries other than in domestic buildings (equipment to be determined, but not less than) *fixed seating means that the removal of the seating and the use of the space for other purposes is unlikely to occur. 4.0 4.5 24.0 5 Floors for- art galleries; assembly areas without fixed seating; dance halls; department stores, supermarkets and shops for display and sale of merchandise; footbridges between buildings, footpaths, terraces, plazas and areas used for pedestrian traffic; grandstands; gymnasiums; hotel and motel bars, vestibules, lounges, public rooms, dining rooms; library rooms with book storage (excluding library stack rooms); office for storage and normal filing purposes; public halls and lounges; restaurants, night-clubs, dining rooms subject to crowd loading, canteens and fast food shops; theatres and cinemas 5.0 4.5 30.0 6 Floors for- boiler rooms (equipment to be determined, but not less than); motor rooms, fan rooms and the like (equipment to be determined, but not less than); stages and television studios used as stages 7.5 9.0 45.0 7 Floors for- workshops, factories and other buildings or parts of buildings of similar category for industrial use - (a) for light weight loads (b) for medium weight loads (c) for heavy weight loads (d) for printing plants (equipment to be determined, but not less than) 5.0 7.5 10.0 12.5 9.0 9.0 9.0 9.0 - - - - 8 Floors used for storage purposes for- (a) library stack rooms, book stores (b) cold storage (c) paper storage in printing plants (d) storage other than types specified in (a), (b) and (c), including storage in warehouse * storage height shall be the height of the space between the floor and a physical constraint to the height of storage formed by a ceiling, soffit of a floor, roof or other obstruction. 3.5 for each metre of *storage height but not less than 10.0 5.0 for each metre of *storage height but not less than 15.0 8.0 for each metre of *storage height to be determined, but not less than 2.5 for each metre of * storage height to be determined, but not less than 9.0 to be determined, but not less than 9.0 to be determined, but not less than 9.0 to be determined, but not less than 9.0 - - - - 9 Areas used for carriageways, floors, driveways and ramps used by vehicles- (a) for car parking only, for vehicles not exceeding 2500 kg gross weight (b) for vehicles not exceeding 4000 kg gross weight and inaccessible to fire-fighting engines (c) for vehicles not exceeding 4000 kg gross weight but accessible to fire-fighting engines 4.0 7.5 7.5 9.0 15.0 75.0 24.0 45.0 150.0 (d) for vehicles not exceeding 12000 kg gross weight but accessible to fire-fighting engines (e) for vehicles other than types specified in (a), (b), (c) and (d) 80 % of appropriate highway loading appropriate highway loading 10 Flat roofs and sloping roofs up to and including 10o - (a) where no access is provided to the roof (other than such access as may be necessary for maintenance work) (b) where access (in addition to such access as may be necessary for maintenance work) is provided to the roof 0.75 2.0 1.0 2.0 - 15.0 11 Pitched roofs (where no access is provided to the roof other than such access as may be necessary for maintenance work) having an inclination to the horizontal- (a) of 30o or less (b) of 75o or more 0.75 Nil 1.0 Nil - - (c) more than 30o and less than 75o linear interpolation according to the pitch 12 Stairs, landings and corridors same as the floors to which they give access but not less than 3.0 and not more than 10.0 4.5 - (2) (a) Except as provided in paragraphs (b), (c), (d) and (e), in calculating the total imposed load on any column, pier, wall or foundation, the distributed imposed load on the roof and every floor carried thereby may be subject to the reductions specified in Table 2. (b) Where a single span of beam supports not less than 45 m2 of floor at any one level the distributed imposed load for the purpose only of determining the design of the beam may be subject to a reduction of 5% for each complete 45 m2 of that floor so supported but not more than 20% in all. (c) The reduction specified in paragraph (a) or (b), whichever is the greater, may be taken into account in calculating the total load on any column, pier, wall or foundation. |